A liquid medicine filter with convenient filter screen replacement

Abstract

The utility model belongs to the technical field of liquid medicine filters, specifically a liquid medicine filter with a conveniently replaceable filter screen, comprising an upper hopper and a filter screen body, the bottom of the upper hopper is connected to a lower hopper, and the filter screen body is installed on the inner wall of the lower hopper; a fixed block is arranged at the bottom of the filter screen body, a plug rod is connected through the middle of the fixed block, a movable spring is arranged between the plug rod and the fixed block, and a pressure rod is arranged at the top of the filter screen body. The utility model realizes the convenient and rapid replacement of the filter screen body.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid medicine filters, in particular to a liquid medicine filter with a filter screen that is convenient to replace. Background Art

[0002] During the production process of liquid medicine, there are usually a lot of raw material impurities inside the liquid medicine. Usually, a liquid medicine filter is used to filter the impurities in the liquid medicine to ensure the quality of the liquid medicine.

[0003] After the drug liquid filter is used, impurities will remain on the filter screen. In order not to affect the filtering effect, the filter screen needs to be replaced regularly. In the prior art, the filter screen is usually fixed inside the drug liquid filter by screws, which makes it inconvenient to disassemble and replace the filter screen. Summary of the invention

[0004] The purpose of the utility model is to provide a liquid medicine filter with a filter screen that is easy to replace, so as to solve the problems pointed out in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a liquid medicine filter with a filter screen that is easy to replace, comprising an upper hopper and a filter screen body, wherein the bottom of the upper hopper is connected to a lower hopper, and the filter screen body is installed on the inner wall of the lower hopper;

[0006] A fixing block is arranged at the bottom of the filter body, a plug rod is connected through the middle of the fixing block, a movable spring is arranged between the plug rod and the fixing block, and a pressure rod is arranged at the top of the filter body.

[0007] Preferably, a clamping rod is inserted into one side of the pressure rod, and a rubber pad is provided between the clamping rod and the groove of the lower hopper.

[0008] Preferably, a wedge block is provided on one side of the clamping rod via an inclined surface, and a movable ring penetrating the lower hopper is connected to one side of the wedge block.

[0009] Preferably, one end of the wedge-shaped block is connected to a telescopic block, and a telescopic spring is installed between the telescopic block and the groove of the lower hopper.

[0010] Preferably, a rotating ring is provided on the outer side of the upper hopper, and a rotating block penetrating the upper hopper is installed on the inner wall of the rotating ring via a rotating shaft.

[0011] Preferably, a through hole penetrates and connects the limiting block in the middle of the rotating block, and a first protrusion is installed on the inner wall of the rotating ring.

[0012] Preferably, a return spring is provided on one side of the first protrusion, and a second protrusion is installed on a side of the return spring away from the first protrusion.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the filter body needs to be replaced, push the movable ring upwards so that the wedge block releases the squeeze on the clamping rod. The clamping rod will shrink into the lower hopper through the rubber pad, and the upper hopper and the filter body will move upwards through the plug rod and the movable spring, making it easier to replace the filter body.

[0015] 2. When the utility model is used to filter the liquid medicine, the liquid medicine feed pipe is inserted into the upper hopper, and then the rotating ring drives the rotating block to rotate through the reset spring. The feed pipe in the upper hopper can be limited and fixed by the rotation of the four groups of rotating blocks, thereby ensuring the stability of the liquid medicine during the filtration process and avoiding the liquid medicine from spilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0018] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper hopper of the utility model from top view;

[0020] Figure 4 It is a front view cross-sectional structural schematic diagram of the lower hopper of the utility model.

[0021] In the figure: 1, upper hopper; 2, lower hopper; 3, filter body; 4, fixed block; 5, plug rod; 6, movable spring; 7, pressure rod; 8, clamping rod; 9, rubber pad; 10, wedge block; 11, movable ring; 12, telescopic block; 13, telescopic spring; 14, rotating ring; 15, rotating block; 16, limit block; 17, first protrusion; 18, reset spring; 19, second protrusion. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 2 The utility model provides a technical solution: a liquid medicine filter with a filter screen that is easy to replace, comprising an upper hopper 1 and a filter screen body 3, the bottom of the upper hopper 1 is connected to a lower hopper 2, and the filter screen body 3 is installed on the inner wall of the lower hopper 2;

[0024] A fixed block 4 is provided at the bottom of the filter body 3, an insertion rod 5 is connected through the middle of the fixed block 4, a movable spring 6 is provided between the insertion rod 5 and the fixed block 4, a pressure rod 7 is provided at the top of the filter body 3, a clamping rod 8 is inserted on one side of the pressure rod 7, a rubber pad 9 is provided between the clamping rod 8 and the groove of the lower hopper 2, a wedge block 10 is provided on one side of the clamping rod 8 through an inclined surface, a movable ring 11 passing through the lower hopper 2 is connected to one side of the wedge block 10, a telescopic block 12 is connected to one end of the wedge block 10, a telescopic spring 13 is installed between the telescopic block 12 and the groove of the lower hopper 2, the fixed block 4 is installed on the inner wall of the lower hopper 2, and the pressure rod 7 is installed on the inner wall of the upper hopper 1.

[0025] When the filter body 3 needs to be replaced, the movable ring 11 is pushed upward to drive the wedge block 10 on one side to move upward. The wedge block 10 drives the telescopic block 12 to move upward, and the telescopic spring 13 at the bottom of the telescopic block 12 is stretched. At the same time, the wedge block 10 releases the squeezing of the clamping rod 8, and the clamping rod 8 will be retracted from the through hole of the pressure rod 7 to the groove of the lower hopper 2 through the rubber pad 9. The clamping rod 8 releases the limit of the pressure rod 7. At this time, the insertion rod 5 passing through the middle of the fixed block 4 will be reset by the movable spring 6, so that the insertion rod 5 pushes the filter body 3 upward. The upward movement of the filter body 3 drives the pressure rod 7 to move upward, so that the upper hopper 1 is separated from the lower hopper 2. At this time, the upper hopper 1 can be removed from the top of the lower hopper 2, so that the filter body 3 can be replaced conveniently and quickly.

[0026] When the filter body 3 is installed, the upper hopper 1 is docked to the top of the lower hopper 2, and the upper hopper 1 and the lower hopper 2 are tightly fitted. When the through hole of the pressure rod 7 on the inner wall of the upper hopper 1 is aligned with the clamping rod 8, the movable ring 11 is released. The movable ring 11 will be reset by the movable spring 6 at one end of the wedge block 10, so that the wedge block 10 moves downward. Since the end of the wedge block 10 and the clamping rod 8 that are close to each other are both inclined structures, the downward movement of the wedge block 10 will squeeze the clamping rod 8 through the inclined surface. After being squeezed, the clamping rod 8 is moved out through the groove of the lower hopper 2 and inserted into the groove of the pressure rod 7, so that the upper hopper 1 and the lower hopper 2 can be limited and fixed. At the same time, the filter body 3 is squeezed by the pressure rod 7 and the blocking and limiting effect of the bottom fixing block 4, and can be stably installed in the lower hopper 2, thereby realizing convenient and quick fixation of the filter body 3.

[0027] See also Figure 2 and Figure 4 It can be seen that when in use, the upper hopper 1 and the lower hopper 2 can be quickly separated as needed, and then the filter body 3 will be pushed upward by the cooperation of the insertion rod 5 and the movable spring 6, so that the filter body 3 can be quickly and conveniently replaced.

[0028] A rotating ring 14 is provided on the outer side of the upper hopper 1, and a rotating block 15 penetrating the upper hopper 1 is installed on the inner wall of the rotating ring 14 through a rotating shaft, and a limiting block 16 is connected to the middle of the rotating block 15 through a through hole, and a first protrusion 17 is installed on the inner wall of the rotating ring 14, and a return spring 18 is provided on one side of the first protrusion 17, and a second protrusion 19 is installed on the side of the return spring 18 away from the first protrusion 17, and the second protrusion 19 is installed on the outer side of the upper hopper 1.

[0029] During specific implementation, when it is necessary to fix the pipe of the feed port in the upper hopper 1, the rotating ring 14 is rotated. The rotating ring 14 squeezes the return spring 18 under the cooperation of the first protrusion 17 and the second protrusion 19. When the rotating ring 14 rotates, one end of the rotating block 15 will rotate after being subjected to tension, and because the limit block 16 passes through the through hole in the middle of the rotating block, it is limited by the limit block 16. When the rotating block 5 rotates, the limit block 16 will drive the rotating block 15 to rotate along the inner wall of the upper hopper 1 through the through hole in the middle of the rotating block 15. Then the pipe of the feed port is plugged into the upper hopper 1, and then the rotating ring 14 is released. Under the cooperation of the return spring 18, the first protrusion 17 and the second protrusion 19, the rotating ring 14 rotates in the opposite direction, driving the rotating block 15 to rotate in the opposite direction. At this time, the rotating block 15 can limit and fix the pipe of the feed port to prevent the liquid medicine from spilling during the feeding process.

[0030] See also Figures 1 to 3It can be seen that when in use, the pipe of the feed port can be inserted into the upper hopper 1 as needed, and then the reset spring 18 drives the rotating ring 14 to rotate in the opposite direction. At the same time, with the cooperation of the limit block 16, the rotating block 15 rotates in the opposite direction. The rotating block 15 has the function of limiting and fixing the pipe of the feed port, and can also clamp the pipes of feed ports of different sizes.

[0031] To sum up: when the utility model is used, the medicinal liquid to be filtered is added into the upper hopper 1 through the feed pipe, the medicinal liquid will fall into the lower hopper 2 through the upper hopper 1, and the impurities in the medicinal liquid will be filtered through the filter body 3 in the lower hopper 2. After the filtration is completed, the medicinal liquid will be discharged through the lower hopper 2, so as to facilitate the filtration of the medicinal liquid. This is the use feature of the medicinal liquid filter with easy replacement of the filter screen. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid medicine filter with a filter screen that is easy to replace, comprising an upper hopper (1) and a filter screen body (3), characterized in that: The bottom of the upper hopper (1) is connected to a lower hopper (2), and the filter body (3) is installed on the inner wall of the lower hopper (2); A fixing block (4) is arranged at the bottom of the filter body (3), a plug rod (5) is connected through the middle of the fixing block (4), a movable spring (6) is arranged between the plug rod (5) and the fixing block (4), and a pressure rod (7) is arranged at the top of the filter body (3).

2. A liquid medicine filter with an easily replaceable filter screen according to claim 1, characterized in that: A clamping rod (8) is inserted into one side of the pressure rod (7), and a rubber pad (9) is arranged between the clamping rod (8) and the groove of the lower hopper (2).

3. The liquid medicine filter with easily replaceable filter screen according to claim 2, characterized in that: A wedge block (10) is provided on one side of the clamping rod (8) via an inclined surface, and a movable ring (11) penetrating the lower hopper (2) is connected to one side of the wedge block (10).

4. The liquid medicine filter with easily replaceable filter screen according to claim 3, characterized in that: One end of the wedge block (10) is connected to a telescopic block (12), and a telescopic spring (13) is installed between the telescopic block (12) and the groove of the lower hopper (2).

5. The liquid medicine filter with easily replaceable filter screen according to claim 1, characterized in that: A rotating ring (14) is arranged on the outer side of the upper hopper (1), and a rotating block (15) penetrating the upper hopper (1) is installed on the inner wall of the rotating ring (14) via a rotating shaft.

6. The liquid medicine filter with easily replaceable filter screen according to claim 5, characterized in that: The middle of the rotating block (15) is connected to a limiting block (16) through a through hole, and the inner wall of the rotating ring (14) is provided with a first protrusion (17).

7. The liquid medicine filter with easily replaceable filter screen according to claim 6, characterized in that: A return spring (18) is provided on one side of the first protrusion (17), and a second protrusion (19) is installed on the side of the return spring (18) away from the first protrusion (17).

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